pronoun
A highly arrogant, self-important first-person pronoun. Used by characters who are full of themselves, often in fiction or jokingly among friends. Not used in polite or formal settings.
俺様が直々に教えてやる。
I, the great me, will personally teach you.
「俺様に任せろ」と彼は胸を張った。
"Leave it to me, the magnificent," he said, puffing out his chest.
noun
self-centered man; egotistical man; pompous man
Refers to a man with an inflated ego, often used critically or humorously. Can describe a person's character or be used as a label.
彼は典型的な俺様タイプで、人の話を聞かない。
He's a typical egotistical guy who never listens to others.
あの俺様ぶりには呆れるよ。
That pompous attitude of his is just exasperating.
Combination of 俺 (ore, 'I', casual masculine pronoun) and the honorific suffix 様 (sama), used ironically to create an extremely arrogant self-reference.